org.eclipse.rdf4j.sail.lucene

Class ReaderMonitor

java.lang.Object

org.eclipse.rdf4j.sail.lucene.AbstractReaderMonitor

org.eclipse.rdf4j.sail.lucene.ReaderMonitor

public class ReaderMonitor
extends AbstractReaderMonitor

ReaderMonitor holds IndexReader and IndexSearcher. When ReaderMonitor is closed it do not close IndexReader and IndexSearcher as long as someone reads from them. Variable readingCount remember how many times it was read.

Author:

Tomasz Trela, DFKI Gmbh

Constructor Summary

Constructors

Constructor and Description
ReaderMonitor(LuceneIndex index, org.apache.lucene.store.Directory directory) If exception occur when create indexReader it will be thrown on getIndexReader or get IndexSearcher

Method Summary

Modifier and Type	Method and Description
protected org.apache.lucene.search.IndexSearcher	getIndexSearcher()
protected void	handleClose() This method is thread-safe (i.e.

Methods inherited from class org.eclipse.rdf4j.sail.lucene.AbstractReaderMonitor

beginReading, close, closeWhenPossible, endReading, getReadingCount

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ReaderMonitor

public ReaderMonitor(LuceneIndex index,
                     org.apache.lucene.store.Directory directory)

If exception occur when create indexReader it will be thrown on getIndexReader or get IndexSearcher

Parameters:

index -

directory - Initializes IndexReader

Method Detail

handleClose

protected void handleClose()
                    throws IOException

Description copied from class: AbstractReaderMonitor

This method is thread-safe (i.e. it is not called concurrently).

Specified by:

handleClose in class AbstractReaderMonitor

Throws:

IOException

getIndexSearcher

protected org.apache.lucene.search.IndexSearcher getIndexSearcher()
                                                           throws IOException

Throws:

IOException